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JPL Small-Body Database Browser
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190333 Jirous (1998 SX14)
Classification: Main-belt Asteroid          SPK-ID: 2190333
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710780038232708 4.7465e-08  
a 2.978596431304077 2.7405e-08 au
q 2.469024099641457 1.4381e-07 au
i 13.95242327719937 6.622e-06 deg
node 344.4525245315188 2.4112e-05 deg
peri 298.2951128676934 3.2521e-05 deg
M 136.4749582745475 2.5233e-05 deg
tp 2458288.686216229111
(2018-Jun-19.18621623)
0.00012738 TDB
period 1877.655544997599
5.14
2.5913e-05
7.095e-08
d
yr
n .1917284567763788 2.646e-09 deg/d
Q 3.488168762966697 3.2093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      339  
   data-arc span      7731 days (21.17 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62123  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 15:22:37  

Additional Information
 Earth MOID = 1.48884 au 
 Jupiter MOID = 1.93167 au 
 T_jup = 3.194 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO454314  
diameter diameter 4.671 km 1.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190333 Jirous           Discovered 1998 Sept. 23 by M. Tichy at Klet.
Ivan Martin Jirous (1944-2011) (known as Magor) was a poet, art historian, frontman of the rock group The Plastic People of the Universe and leading personality of the Czech underground movement during the communist regime. In prison he wrote the poetry collection Magorovy labutí písně.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120207/MPCPages.arcLast Updated: 2012-02-09

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Alternate Designations
 1998 SX14 = 2003 QY11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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